A device for the field flow fractionation and method for samples separation by means of the field flow fractionation

摘要

Device for the field flow fractionation, comprising one or more storage container (1), a pump (2), a first through flow amounts of division a direction (3), a first through flow amounts of controlling a direction (5, 6, 7), an injector (8), a fractionising channel (10) with a first terminal (9) at a first end (11) and a second connection (13) at a second end (12), a second through flow amounts of division a direction (14), a first return pressure element (15), one or more detector (s) (19), a second through flow amounts of controlling a direction (22) and one or more waste container (23), whereinthe first through flow amounts of division a direction (3) is able to supply the generated by the pump volume flow in a first flow path (4), which the pump (2) with the first connection (9) of the separation channel (10), and a second flow path (16), which the pump (2) with the second connector (13) of the separation channel connects (10), to divide,the first through flow amounts of controlling a direction (5, 6, 7) and the injector (8) in the first flow path (4) are arranged,the second through flow amounts of division a direction (14) within the second flux path there (16) is arranged and is suitable, the volume flow of the second flux path there (16) between the second connection (13) of the separation channel (10) and the / the detector (s) (19) to divide,the first return pressure element (15) in a third flow path (18) is arranged, which the second through flow amounts of division a direction (14) and the / the detector (s) (19) connects,the second through flow amounts of controlling a direction (22) in a fourth flow path (21) is arranged, which by way of a further connection (20) with the separation channel (10) is connected andthe / the waste containers (23) downstream of the / the detector (s) (19) and the second through flow amounts of controlling a direction (22) is / are arranged,characterized in thatin the second flow path (16) between the first through flow amounts of division a direction (3) and the second through flow amounts of division a direction (14) a second return pressure element (17) is arranged.